Katy Perry has come out and denied the rumors that her new hit song "Part of Me" is about former husband Russell Brand, explaining that she wrote the song two years ago.

"I wrote it two years ago, which is funny because everybody is like 'God, it sounds so current,'" Perry, 27, told MTV News.

But she is determined to get the truth out there even if those around her say she should make the song about Brand.

"Some people that I work with were like, 'You should just say you wrote it a couple of weeks ago,'" Perry said.

"I'm like, 'I'm not a d---, I'm going to tell the truth.' I wrote it two years ago when I was writing and recording Teenage Dream, [but] it didn't feel right on the record," according to People magazine.

Teenage Dream was released in August 2010, just a few months before Perry and Brand got married in India. They filed for divorce just over a year later in December 2011.